He was such _____ good speaker that he held our attention every minute of _____ three-hour lecture.
---How do you like the lecture by Mr. Lee?---____________.
The drill in Antarctica dragged on slowly because of lack of money, equipment breakdowns, environmental_________ and severe cold.
. ---Where did the couple find their child?---It was in the park_________ the family used to camp.
He stayed up too late every night, _____ to catch up with his classmates.
I like getting up very early in summer. The morning air is so good______.